RSD

RSD most often refers to:
 * Serbian dinar, ISO 4217 code for the currency of the Republic of Serbia
 * Reflex sympathetic dystrophy; see complex regional pain syndrome
 * Rejection sensitive dysphoria in psychology

RSD may also refer to:

Science

 * Redshift-space distortions in cosmology
 * Rejection sensitive dysphoria in psychology
 * Repetitive stress disorder, another term for repetitive strain injury
 * Regulator of sigma D, an anti-sigma factor in E. coli bacteria

Statistics

 * Relative standard deviation
 * Robust standard deviation

Technology

 * Really Simple Discovery, an XML format describing some features of a blog service
 * Remote sensing data
 * Roller shutter door
 * Retinal scanning display, another term for a virtual retinal display
 * Recreational Software Designs, the developer of the game creation system Game-Maker

People

 * Rahul Sharad Dravid, an Indian former cricketer and commentator
 * Alias of Rob Smith (British musician), British electronic musician

Schools and school districts

 * Rochester School for the Deaf, a school in Rochester, New York, USA
 * Royal School Dungannon, a grammar school in Northern Ireland
 * Reading School District in Reading, Pennsylvania
 * Recovery School District - Louisiana
 * Rhinelander School District in Rhinelander, Wisconsin
 * Rochester City School District in Rochester, New York
 * Rockwood School District in St. Louis County, Missouri
 * Roosevelt School District in Phoenix, Arizona

Other uses

 * Record Store Day, an annual celebration of independent record stores
 * RSD-Gaskiya, or Social Democratic Rally, a political party of Niger
 * Real Social Dynamics, a US-based company specializing in teaching men how to meet and pick up women, run by Julien Blanc
 * Reichssicherheitsdienst (Reich security service), Hitler's SS bodyguard unit in Nazi Germany
 * Rock Sound International Airport, Bahamas (IATA code: RSD)